Apparatus for dumping cars.



J.- H. COTTON. APPARATUS FOR DUMPING CARS.

v APPLICATION FILED JULY 5, 1912. 1,084,256.

Patented Jan. 13, 1914.

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WITNESSES.

J. COTTON. APPARATUS FOR DUMPING CARS. A PPLIOATION FILED JULY 5, 1912.

PatentedJan. 13,1914.

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flb WCM MQW J. H. uit-T011. APPARATUS FOBIDIUMPIING CARS.

APPLICATION FILED JULY 5, 1912.

Patented Jan; 13, 1914,

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INVENTOFL' J. H. GOTTONB APPARATUS FOR DUMPING CARS.

APPLICATION FILED JULY 5, 1912.

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JAMES HLZELITT COTTON, 0F BELLEVU'IE, PENNSYLVANIA, ASSIGNOB TO ORENSTEIN- ARTHUR KOPPEL 00., A CORPORATION 01 GERMANY.

APPARATUS FOR DUMPING CARS.

osaese.

Specification of Letters Patent.

Patented J an. 13, 1914.

Application filed July 5-, 1912. Serial No. 707,814.

To all whom it may concern:

Be it known that 1, JAMES HAzELrrT Cor- TON, a citizen of the United States, and resident of Bellevue, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in- Appar'atus for Dumping Cars; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to dump-cars of the tilting body type.

The object of my invention is to provide a dump-car of this character in which the body of the car is automatically locked against dumping when the body is brought to normal position and the locking mechanism automatically released when the dumping operation takes place, whereby I am enabled to dispense with the chains ordinarily employed for holding the car-body from tilting, and the necessity of releasing these chains by hand when the car is to be dumped, which in many cases is attended with great danger to the person releasing said chains. r

To these ends my invention comprises the novel features hereinafter set forth and claimed.

Referring to the accompanying drawings Figure 1 is a longitudinal elevation of a car embodying my invention; Fig. 2 is a cross section taken at about the middle of the car; Fig. 3 is a plan view of the cylinders and the mechanism operated therefrom for throwing the locking members out of position; Fig. 4 is a cross section of half the car taken half near the forward end and half about the middle of the car; Fig. 5 is a like view showing the car in tilted position; and Fig. 6 is a detail of the latch mechanism.

In Fig. 1 I have illustrated adump-car of the tilting-body type in which the car is pivotally mounted along a center line, and, as my invention does not refer to the details of the underframe and other parts, it

will not be necessary to refer to same in detail as they may be of the ordinary con struction.

The dumping-body 2 is provided with the brackets 3 which are pivotally mounted on the standards 1 of the underframe by means of the pivotal pins 5.

In an application filed by Karl H. Hansen June 8, 1912, Serial No. 702,588, there is illustrated and described mechanism for tilting the car-body and this mechanism I have illustrated in the present a plication.

At or about the mid-point of tile car are the cylinders 6 and 7 which are supported in any suitable manner on the underframe.

Air or other motive fluid may be supplied to said cylinders from any suitable source,

such as the locomotive. The piston-rods 8 are connected to suitable pistons within the cylinders and the upper ends of said piston-rods carry the cross-heads 9. These cross-heads. have the trunnions 10 projecting out therefrom. The brackets 11are secured to the bottom of the car-body at each side of the center line of the car and said brackets are provided with lugs 12. A clevis member 13 is connected to the bracket 10 by means of a pin 14 and in this manner said clevis-member is adapted to 'swing on said brackets. The clevis-metnber 13 is provided with the-ears 15 to which the arm 16 is pivoted by pin 17'. The mounting of these arms in this manner holds the pins 14 in position and prevents its dislodgment. The arms 16 in the normal posit-ion of the car hang in a substantiall vertical position, and when in thisposition the faces 18 abut. The lower ends of the arm 16 are provided with the seats '19 with the curved upper portion 20 to receive the trunnions of the cross-head 9. The arms are further recessed as at 21 to receive the cross-head 9 when said cross-head is moved up to ,engage said arms.

The lower ends of the arin 16 are beveled as at 22 and below said arms and in the path of same on the descent of said arms are .the inclined planes 23 located adjacent to the cylinder head. These inclined planes act to deflect or force the arms 16 apart when the car is dumped, all as fully set forth and described in the foregoing application.

. this position the stop 24 acts in contact with the bottom of the car-body or other fixed abutment and prevents the vertical arm 16 swinging into a vertical position which they would naturally assume, the purpose of this greatly reduced.

being to hold the said arms approximately at right-angles with the bottom of the car, when the piston is elevated so that there will be a direct vertical thrust of the piston, and side-thrust of the piston rod 8 will be engages the pin 26. A spring normally forces the latch outward. Connected to the swinging member 26 is the link 29 which is connected to one arm 31 of the bellcrank 30. The other arm 31 of said bellcrank is connected to the rod 32 which is provided with the turnbuckle 33, and is connected at its opposite 'end to the upper end of the bell-crank 34. The lower arm 35 of the bell-crank 34 is adapted to engage the inner end of the locking-member 36 WhlCll is keyed to the shaft 37, said shaft being supported in hearings on the underframe of the car. A spring 37 acts to hold the locking-member 36 normally in'locking position. The locking-member 36 has the hooked portion 38 and said member when in normal position is adapted to engage the shaft 39 whichconnects the arms 40 and prevents the car-body .from moving upwardly to dump. The arms 40 are pivoted at 41 to the carbody. The shaft 39 engages slots 42 in the links 43 which are mounted on the pivotal point 44 on the underframe. The shaft 39 carries at its ends the rollers 45 which travel on the inclined plane 46 on the car underfra'me.

. .A buffer 47 is provided to relieve the shock on the car body during the dumping 'operation,

When, it is desired to dump the car, the air or other motive fluid is admitted to one of the cylinders 6 or 7 according to the side to whio the car is to be tilted, and as the pi ton-rod of said cylinder rises the crosshea 9 engages the latch 25 and through the connections described. .the lower arm 35 of the bell-crank 34 is raised and lifts the inner end of the arm 36, whereby the outer or hooked end of said arm is lowered. In this manner the locking mechanism on that side of the car opposite from which the dumping is to take place is released and by further ascent of the cross-head 9 the trunnions-10' fit in the bearings 20 and there is a direct vertical push which dumps the car and the contents are discharged therefrom, the carsides being moved by any so itable mechanism, which it has not been deemed necessary to illustrate. As the car tilts, the arms 40 and links 43 will move upwardly the shaft 39 belng free to move in the slots 42. At the opposite side of the car the arms 40 will move back or. the links 43 with the shaft 39 moving in the slot 42, and the rollers 45 traveling up the incline 46. When the cross-head "9 passes the latch 25, said latch 25 will assume its normal position and when said cross-headdescends it will engage the bevel 27 and move said latch back and said latch will again move out-when said crosshead has passed. When the car-body is brought back to normal position, the shaft 39 will engage the hooked end of the locking member 36 and said member will yield to permit said shaft to pass when the spring 37 will move said locking member hack into locking position.

By my invention I provide a simple and efficient form of mechanism by means of-which the car-body is automatically locked in position against tilting and is released by the operation of the tilting cylinders which makes it possible to dispense with the chains ordinarily employed for holding the body in position. These chains make it necessary for some one to move along the sides of the car and release the chains to discharge the,

contents of the car, which operation is attended with great danger as the dumping is liable to take place before the operator has reached a place of safety, and he may be struck by the contents of the car and seriously injured. This is especially the case where dumping is done on trestle work and the operator has to stand on the trestle to release the chain. By my invention when the cars are run onto the trestle the engineer, by admitting the air from the locomotive to the cylinders, dumps the cars one after another automatically, and the car bodies when righted are automatically locked in position against tilting.

What I claim is:

1. In a dump-car, the combination with the underframe and tilting-body, of a cylinder, a piston rod, a swinging member, a spring actuated latch carried by said swinging member in the path of said piston rod, locking mechanism for retaining said body against tilting and connections between said swinging member and said locking member for releasing same.

In a dump-car, the combination with an underframe and tilting body, of mechanism fortilting said body, an arm pivotally connected to said body, a link pivotally connected to the underframe, a pin on said arm engaging aslot formed in said link, a

hooked locking member and means for free ing said locking member by the operation of said tilting mechanism.

3. In a dump-car, the combination with the underframe and tilting-body, of mechanism for tilting said body, an arm pivotally connected to said body, a link pivotaliy con- HAZELI'IT to'i'rnN have hereunto ct my nected to the underframe, a pin on said arm hand. engaging a slot formed 1n sald link, a spring actuated hooked locking member, and means JAMES ELITT COTTON for freeing said locking member by the Witnesses:

operation of said tilting mechanism. ROBERT C. Torrrx,

In testimony whereof, I the said JAMES JOIXY F. VILL. 

